E989-03

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Product Specifications: E989-03 – PMT Voltage Divider Circuit

Category	Specification	Details / Notes
General Model Info	Product Code	E989-03
	Product Type	Voltage Divider Circuit (PMT Base)
	Manufacturer	Hamamatsu Photonics
	Primary Use	DC or High-Current Analog Operation of a PMT.
Compatibility	Intended PMT Type	Head-on type PMTs (e.g., R3896, R6350 series)
	Socket Type	10-stage PMT with standard pin arrangement (e.g., 12-pin).
Electrical	Input Voltage (V~in~)	+900 V to +1500 V DC (Positive polarity)
	Output Signal	DC Analog Current (from Anode)
	Output Connector	BNC connector
	Divider Type	Zener-regulated or Low-Drop Divider Network
	Divider Ratio	Fixed, optimized for high current stability.
	Polarity	Cathode Grounded / Anode at High Voltage (Positive output)
	Capacitive Decoupling	Minimal or absent to preserve DC response.
Performance	Maximum Average Anode Current	1 mA (Significantly higher than pulse-operated bases)
	Linearity	< ±1% (Excellent linearity over a wide current range)
	Output Impedance	Defined by resistor values, suitable for picoammeters.
	Stability	High thermal stability due to optimized power dissipation in resistors.
Mechanical	Housing Material	Plastic (PBT) or Metal (for heat dissipation)
	PMT Socket	Integrated, with pin guides and securing mechanism.
	High Voltage Input	SHV connector (Standard High Voltage)
	Signal Output	BNC connector
	Dimensions	Varies, typically a cylindrical or rectangular base.
	Heat Dissipation	May include features for better thermal management.
Environmental	Operating Temperature	-10 °C to +50 °C
	Storage Temperature	-20 °C to +60 °C
	Humidity	Non-condensing